Elevator for harvesting machines



ug'lz, 1952 A. K. K. ANDERsl-:N ETAL 2,606,647

ELEVATOR FOR HARVESTING MACHINES Filed June 222.A 1949 Patented Aug. 12,1952 ELEVATOR FOR HAHN7 ESTIN G MACHINES Anders Karl Kristian Andersen,Stenstrup, and Thomas Rosenstand, Korinth, Denmark Application June 22,1949, Serial No. 100,676

s claims. 1. lss- 204) l V The present invention relates to improvementsence of foreign matter.

A` still further object ci the invention is the provision of guidemembers for the conveyor chains so arranged that the said chains are notsubjected to damage by foreign matter.

Other objects and a fuller understanding of the invention may be hadbyreferring to the following description and claims, taken in Yconjunctionwith the accompanying drawing, in which lFig. 1 is a side elevationofvan elevator with somenparts broken away, and

Fig. 2Y is a topelevation o the lower part of the elevator shown `inFig. 1parts of which have been eliminated to avoid obscurity;v

i Referring to the drawing I indicates the horizontal lower frame of theharvester, and 2 the lower frame of the inclined elevator part, thecurved transition between these two elevator -parts-` being indicated by3. The horizontal frame vpart I which has rectangular shape, is providedwith twopairs of uprights 4 and 5, in each of which is journalled asprocket 6 for two parallel conveyor cliains'l (shown in dot-and-dashlines intFig. `2).- f'lhe.; two 'chains' are, carried over sprockets 8journalled in the upper end ofthe inclined elevator part'Z- in such amanner that the chains from the base of the'horizontal travel upA along'the base of the inclined elevator part and return to the sprocket 6'farthest from the inclined elevator part. The two chains are in-vterconnected by means of a number of. relatively interspaced transversebars 9 which, during their passage, along the base of the elevator, movewith their lower edge slightly raised above rthe said base,.and whichAalong the inclined elevator part `2 are guided between two verticallyspaced cleats I-D and vII described in'detail later on.

I The inclined elevator frame-2 is bracedin relation to the horizontalelevator part I bymeans of a .longitudinal frame bar v I2 and stays I3and I4.

- Accordingto the invention the part of the elevator base constitutingthe curved transition 3 'is resiliently attached to the frame parts Iand 2. As shown in Fig. l the lower portion I5 of the base of theinclined elevator part is detached from the remaining xed parts I6 andIl of the vsaid base, and is journalled at its upper endvto the frame 2by means of a hinge I8. Somewhat spaced from the lower end of the hingedbase part I5 is attached the one end of a drag spring I9 the other end20 of which is attached to the nearest upright 5. This spring serves tohold the hinged base part I5 in approximate alignment with the fixedbase parts I6 and I'I, and to this end stop members 2l attached to theframe I are provided. The vpart 22 of the base of the horizontallelevator part adjacent the lower end of the hinged base part I5 islikewise detached from the fixed base part I1, being rotatablyattached'thereto by means of a hinge pin 23. This horizontal base part22 rests with its free edge on a ledge 24 attached to the lower side ofthe hinged basepart I5. ".lhus, if any congestion arises between thelower edge of the transverse conveyor bars 9 and the xed horizontal baseI'I, the material causing such' congestion will upon reaching the hingedbase `part 22' press this part downwardly, and owing to the ledge 24 thehinged base part I5 will likewise be lowered against actuation of springI9, consequently the congestion will be released and the material willbe moved smoothly along the curved transition 3. Incase the congestion'commences at the curved portion 3 of the base `part I5, this part willbeA depressed `by rotating on'its hinge I8 against the actuation ofspring I9, and the congestion is immediately released. 'The edges of thehinged base parts I5 and 22 are provided with upwardly extending flangesI5a and 22a respectively on their side edges.

' f During the travel of material upwardly along the vinclined elevatorpart there isgsome risk of foreign matter such as stones becoming jammedbetween the travelling chains 1 and the guide cleats II or I2. Toprevent any damage being doneto the chain, or to the entire machine be-'ing stopped, the cleats are arranged in the following manner;

The lower ends of the two cleats I0 and `II' are attached verticallyspaced to a post 25 so that 'the' chain 'I may travely freely betweenthe two cleats. The'opposite end of the lower cleat I0 isrigidlyattached to the elevator frame and carries here an abutment 26 uponwhich the upper end of the upper cleat I I rests without being at'-tached thereto.

Although the invention is described with a cer-` f.

tain degree of particularity, it is understood that the presentdisclosure has beenmadeonly'by-way i of example, and that manyalterations in the., v.

details of construction and the combination and arrangement of parts maybe resorted to without departing from the spirit arid-the scope theinvention as hereinafter claimed. Y. We declare that whatwe claim is:1.Inan elevator having `a. conveyor chain,- a

"device I for` preventing: damage ltothe 4conveyor chain comprising, `incombination, ahpairof .elongated l bar members 'mounted respectively vonopposite sidesof theconveyor lchaiirand being Spaced'therefrom "thesaidbar. members .being I ixedly connected together at" one of theirrespective ends; astopmember fixed to the other of the ends of one ofsaid bar members and reaching toward the other of thebar members; springmeans 4urging the other of the bar members toward said one of the barmembers so that the yotherendof thek other of the bar members rests'on'said stop member,V whereby A'the movement of said elongated barmembers towardeach other is limited by said stop membery andwher'eby anyobstruction. between vthe chain'and other bar member will cause thelatter to-be raised against Atheactiono'f said spring means so as toprevent .injury to the chain.

l ,2. In an velevator having la` conveyor-chain .gudedover sprocketwheels, a device for prevent- 'ing damage tothe chain comprising, incombination, a rst elongated bar xedly mounted on the f el'evator, saidrst elongated bar being. located on [one side of a portion of the chainlocated between two sprocket wheels insubstantially parallelrelation-Eto the chain portion .and being. slightly spaced.therefrom; 'astop memberfxedtonone end of said `first elongated bar and extendingfrom said bar tothe side ofsaid chainportion 'opposite to thatonwhichsaid-rst bar is located;

a second elongated bar locatedon the other side of the chainportion fromsaid rst elongatedv bar,

' sadsecondelongated bar being located in par.-

allel and slightly spacedrelation to the chain portion, one end of said.second elongated bar being xedly connectedto said rst elongated barandthe other end of said second elongated `bar bearing .against said.stop member; spring 'means'urging said second elongated bar 'towards.said stop member and said -rst .elongated bar,

whereby said 'stop memberlimits the movement .of...said second elongatedbar toward the .chain Aportion and rstelongated bar.l and wherebyanyyguided over sprocket wheels, adevice for prevent- Ving damage to thechainqcomprising, in combina'- .tion, a first elongated bar beinglocatedon one lside ofV a portion of the chain-'located between two sprocketwheels in substantially parallel irelasaid second elongatedbartbeingiorcat'ed" 'inper- .allel and 'slightly spaced Irelationtozilie chain portion, one end of said second elongated bar beingfixedly connected to said rst elongated bar and the other end of saidsecond elongated bar bearing against.`said stop membernleaf spring meansbearing against the side of's'aid second elongated bar which is distantfro 'the chain portion and urging said second elongated bar A' movementof said second elongated bar toward yLio the chain portion andv rstelongated barvand whereby anyV obstruction loated'betweenl the chainportion and second'*elongatedVv ba1jwill move the latter againstthe-action"of said spring means 'so as to prevent damage to thechain!ff-"-v 4. An elevator comprising; in,v combination, a first'continuous floor portieri adapted to receive goods -t'o beconveyedinthe elevator; a second continuous floor portion angularlylocated with respect to said first iioor portion and'alon'gwhich goodsare adapted to be conveyed from said r'st oor portion, said Asecond oor"portion'being spaced from said rst oor portion;v a' vplurality ofmutually spaced elongated conveyer elements transversely arranged withrespect t'o'sraid floor portions of said elevator; cha-in and lsprocketmeans connected to said conveyer elements for moving the same over saidfloor'portions andl in slightly spaced relation therefrom;a'th'ird'con'- tinuous floor portion located between said-rst and second'floor portions,l said third-i iioo'r portionl being hingedly'connectedat' one en'd thereof to said second oor portion;A spring means connectedvto said third floor prtionffor urging the other end thereoftoward'ssaidfi-rst'iioor portion; and stop means for limitinglthefmovement'of said other end of said third flo'or'fportion'towardssaid first floor portion'at thef point where'said other end of saidthird oorportion is in'substantially the same'plane as said r'st floorportion, wherebyany obstructions between said co'nveyer elements orchain and third floor portion moves .the latter against the action ofsaid spring means so that the other end oi" said third floor portionmoves away from said firstfloor por'- l l 'I 5.' An elevator comprising,inY combination; a. first continuous floor portion adapted toreceivegoods to be conveyed in the elevator; ais'econd continuous floor portionangularly locatedwith respect to said first floor portion andlalongfwhich goods are adapted to be conveyed from said `first oorportion, said second iloor 4portion'being spaced from said rst oorportion; a' plurality of mutually spaced elongated conveyer elementstransversely arranged withrespect to said door portions' of'said'elevator; chain 'and 'sprocket means connected to said conveyer elementsfor moving the same over said'ffloo'r portinsfand in slightly spacedYrelation therefrom; a' third continuous'floor portion located between`said r-s't and second floor portions, said third floor portion beinghingedly connected at one` end thereof to said second floor portion;springm'eans connected toi said third floor portion for urging the otherend thereof towards `said r'stiioor portior'i; stop means for limitingthe movement of said other end of said third door portion towards saidfirst floor portion at the point where said other end cf said third oorportion is substantially in the same plane as said first floor portion;and a fourth continuous floor portion pivotally connected at one endthereof to said first floor portion and resting with its other end onthe other end of said third door portion, whereby said spring meansconnected to said third floor portion also maintains said fourth floorportion in proper position so as to form a continuation of said firstfloor portion and whereby any obstruction between said conveyor elementsor chain and said third and fourth floor portions causes said third andfourth noor portions to be moved against the action of said spring meansso that the other ends of said third and fourth floor portions move awayfrom said iirst floor portion and away from each other.

(i. An elevator having a conveyor chain guided over sprocket wheelscomprising, in combination, a nrst continuous floor portion adapted tore ceive goods to be* conveyed in the elevator; a second continuousfloor portion angularly located with respect to said first floor portionand along which goods are adapted to be conveyed from said first oorportion, said second iioor portion being spaced from said first floorportion; a plurality of mutually spaced elongated conveyer elei entstransversely arranged with respect to said floor portions of saidelevator; chain and sprocket means connected to said conveyer elementsfor moving the same over said floor portions and in slightly spacedrelation therefrom; a third continuous iioor portion located betweensaid first and second floor portions, said third floor portion beinghingedly connected at one end thereof to said second iioor portion;spring means connected to said third floor portion for urging the otherend thereof towards said rst floor portion; stop means for limiting themovement of said other end of said third door portion towards said rstfloor portion at the point where said other end of said third floorportion is substantially in the same plane as said first floor portion;a fourth continuous floor portion pivotally connected at one end thereofto said first floor portion and resting with its other end on the otherend of said third floor portion, whereby said spring means connected tosaid third floor portion also maintains said fourth floor portion inproper position so as to form a continuation of said rst floor portionand whereby any obstruction between said conveyor elements or chain andsaid third and fourth floor portions causes said third and fourth floorportions to be moved against the action of said spring means so that theother ends of said third and fourth floor portions move away from saidfirst fioor portion and away from each other; a first elongated barxedly mounted on said second floor portion, said iirst elongated barbeing located on one side of a portion of the chain located between twosprocket wheels in substantially parallel relation to the chain portionand being slightly spaced therefrom; a stop member fixed to one end ofsaid first elongated bar and extending from said bar to the side of saidchain portion opposite to that on which said first bar is located; asecond elongated bar located on the other side of the chain portion fromsaid first elongated bar, said second elongated bar being located inparallel and slightly spaced relation to the chain portion, one end ofsaid second elongated bar being xedly connected to said first elongatedbar and the other end of said second elongated bar bearing against saidstop member; additional spring means urging said second elongated bartowards said stop member and said first elongated bar, whereby said stopmember limits the movement of said second elongated4 bar toward thechain portion and first elongated bar and whereby any obstructionlocated between the chain portion and second elongated bar will move thelatter against the action of said additional spring means so as toprevent damage to the cha-in.

ANDERS KARL KRISTIAN ANDERSEN. THOMAS ROSENSTAND.

REFERENCES CITED The following references are of record in the n file ofthis patent:

` UNITED STATES PATENTS Number

